3
OPERATING PRECAUTIONS
Make sure the AC mains voltage is correct and is the same as that printed on the
rear of the amplifier. Damage caused by connecting the amplifier to improper AC
voltage is not covered by the three-year US warranty. Make sure the power switch
is off before making any input or output connections.
It is always a good idea to have the gain controls turned down during power-up to
prevent speaker damage if there is a high signal level at the inputs.
CONNECTING INPUTS
Input connections are made via either
the
3-pin XLR
-type connectors (Figure 1 )
or
6.3 mm
sockets on the rear side of the
amplifier.
CONNECTING OUTPUTS
Load can be connected using banana plugs or spade lugs. A black binding post is
considered
“COM”
, while the three red binding posts are considered
“hot”
, and the
voltage is
38V
（
different from the model
）
,
70V
, and
100V
.
Note:
Never connect the
“
hot
”
terminals together.
When connecting load
（
speakers
）
, it is better to use one pair of output terminals only.
If the PROT Led goes on steadily while power has been turned on and signal has been fed,
there must a trouble of output shorted. Please turn it off and correct the trouble then turn it
on again.
ground signal
1
2
3
Figure 1
3-pin XLR-type connectors
